Fórum ➡ Calculate the Sum of Values in List of KeyValuePair<> objects ♦, C#

Fórum ➡ Calculate the Sum of Values in List of KeyValuePair<> objects ♦

//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

#define DISPLAY_THE_TABLE_ROWS
    
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

// aljodav
// http://rextester.com/users/376

// in reply to the MSDN thread
// http://bit.ly/2fGT2w5

namespace Rextester
{
    using Data=KeyValuePair<string,int>;
    class Program
    {
        static List<Data> GetList(){
            return new List<Data>{
                new Data("Jim",100),
                new Data("Jim",200),
                new Data("Mae",567),
                new Data("Ana",31),
                new Data("Ana",13),
                new Data("Mae",210),
                new Data("Jim",700),
            };
        }
        
        public static void Main(string[] args)
        {
            GetList()
                .GroupBy(kvp=>kvp.Key,kvp=>kvp.Value,(key,values)=>new{
                    Name=key,
                    Total=values.Sum()
                })
                .ToList()
                .ForEach(x=>Console.WriteLine("\t\t{0}\t{1}",x.Name,x.Total))
                ;
    
            Console.WriteLine("\n\nHello, world!");
        }
    }
}


run \| edit \| history \| help	0

λ

                                      .NET NoSQL database for rapid development